1/* vi: set sw=4 ts=4: */ 2/* 3 * Common code for gunzip-like applets 4 * 5 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 6 */ 7//kbuild:lib-$(CONFIG_ZCAT) += bbunzip.o 8//kbuild:lib-$(CONFIG_GUNZIP) += bbunzip.o 9//kbuild:lib-$(CONFIG_BZCAT) += bbunzip.o 10//kbuild:lib-$(CONFIG_BUNZIP2) += bbunzip.o 11 12/* lzop_main() uses bbunpack(), need this: */ 13//kbuild:lib-$(CONFIG_LZOP) += bbunzip.o 14//kbuild:lib-$(CONFIG_LZOPCAT) += bbunzip.o 15//kbuild:lib-$(CONFIG_UNLZOP) += bbunzip.o 16/* bzip2_main() too: */ 17//kbuild:lib-$(CONFIG_BZIP2) += bbunzip.o 18/* gzip_main() too: */ 19//kbuild:lib-$(CONFIG_GZIP) += bbunzip.o 20 21#include "libbb.h" 22#include "bb_archive.h" 23 24static 25int open_to_or_warn(int to_fd, const char *filename, int flags, int mode) 26{ 27 int fd = open3_or_warn(filename, flags, mode); 28 if (fd < 0) { 29 return 1; 30 } 31 xmove_fd(fd, to_fd); 32 return 0; 33} 34 35char* FAST_FUNC append_ext(char *filename, const char *expected_ext) 36{ 37 return xasprintf("%s.%s", filename, expected_ext); 38} 39 40int FAST_FUNC bbunpack(char **argv, 41 IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(transformer_state_t *xstate), 42 char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext), 43 const char *expected_ext 44) 45{ 46 struct stat stat_buf; 47 IF_DESKTOP(long long) int status = 0; 48 char *filename, *new_name; 49 smallint exitcode = 0; 50 transformer_state_t xstate; 51 52 do { 53 /* NB: new_name is *maybe* malloc'ed! */ 54 new_name = NULL; 55 filename = *argv; /* can be NULL - 'streaming' bunzip2 */ 56 57 if (filename && LONE_DASH(filename)) 58 filename = NULL; 59 60 /* Open src */ 61 if (filename) { 62 if (!(option_mask32 & BBUNPK_SEAMLESS_MAGIC)) { 63 if (stat(filename, &stat_buf) != 0) { 64 err_name: 65 bb_simple_perror_msg(filename); 66 err: 67 exitcode = 1; 68 goto free_name; 69 } 70 if (open_to_or_warn(STDIN_FILENO, filename, O_RDONLY, 0)) 71 goto err; 72 } else { 73 /* "clever zcat" with FILE */ 74 /* fail_if_not_compressed because zcat refuses uncompressed input */ 75 int fd = open_zipped(filename, /*fail_if_not_compressed:*/ 1); 76 if (fd < 0) 77 goto err_name; 78 xmove_fd(fd, STDIN_FILENO); 79 } 80 } else 81 if (option_mask32 & BBUNPK_SEAMLESS_MAGIC) { 82 /* "clever zcat" on stdin */ 83 if (setup_unzip_on_fd(STDIN_FILENO, /*fail_if_not_compressed*/ 1)) 84 goto err; 85 } 86 87 /* Special cases: test, stdout */ 88 if (option_mask32 & (BBUNPK_OPT_STDOUT|BBUNPK_OPT_TEST)) { 89 if (option_mask32 & BBUNPK_OPT_TEST) 90 if (open_to_or_warn(STDOUT_FILENO, bb_dev_null, O_WRONLY, 0)) 91 xfunc_die(); 92 filename = NULL; 93 } 94 95 /* Open dst if we are going to unpack to file */ 96 if (filename) { 97 new_name = make_new_name(filename, expected_ext); 98 if (!new_name) { 99 bb_error_msg("%s: unknown suffix - ignored", filename); 100 goto err; 101 } 102 103 /* -f: overwrite existing output files */ 104 if (option_mask32 & BBUNPK_OPT_FORCE) { 105 unlink(new_name); 106 } 107 108 /* O_EXCL: "real" bunzip2 doesn't overwrite files */ 109 /* GNU gunzip does not bail out, but goes to next file */ 110 if (open_to_or_warn(STDOUT_FILENO, new_name, O_WRONLY | O_CREAT | O_EXCL, 111 stat_buf.st_mode)) 112 goto err; 113 } 114 115 /* Check that the input is sane */ 116 if (!(option_mask32 & BBUNPK_OPT_FORCE) && isatty(STDIN_FILENO)) { 117 bb_error_msg_and_die("compressed data not read from terminal, " 118 "use -f to force it"); 119 } 120 121 if (!(option_mask32 & BBUNPK_SEAMLESS_MAGIC)) { 122 init_transformer_state(&xstate); 123 /*xstate.signature_skipped = 0; - already is */ 124 /*xstate.src_fd = STDIN_FILENO; - already is */ 125 xstate.dst_fd = STDOUT_FILENO; 126 status = unpacker(&xstate); 127 if (status < 0) 128 exitcode = 1; 129 } else { 130 if (bb_copyfd_eof(STDIN_FILENO, STDOUT_FILENO) < 0) 131 /* Disk full, tty closed, etc. No point in continuing */ 132 xfunc_die(); 133 } 134 135 if (!(option_mask32 & BBUNPK_OPT_STDOUT)) 136 xclose(STDOUT_FILENO); /* with error check! */ 137 138 if (filename) { 139 char *del = new_name; 140 141 if (status >= 0) { 142 unsigned new_name_len; 143 144 /* TODO: restore other things? */ 145 if (xstate.mtime != 0) { 146 struct timeval times[2]; 147 148 times[1].tv_sec = times[0].tv_sec = xstate.mtime; 149 times[1].tv_usec = times[0].tv_usec = 0; 150 /* Note: we closed it first. 151 * On some systems calling utimes 152 * then closing resets the mtime 153 * back to current time. */ 154 utimes(new_name, times); /* ignoring errors */ 155 } 156 157 if (ENABLE_DESKTOP) 158 new_name_len = strlen(new_name); 159 /* Restore source filename (unless tgz -> tar case) */ 160 if (new_name == filename) { 161 new_name_len = strlen(filename); 162 filename[new_name_len] = '.'; 163 } 164 /* Extreme bloat for gunzip compat */ 165 /* Some users do want this info... */ 166 if (ENABLE_DESKTOP && (option_mask32 & BBUNPK_OPT_VERBOSE)) { 167 unsigned percent = status 168 ? ((uoff_t)stat_buf.st_size * 100u / (unsigned long long)status) 169 : 0; 170 fprintf(stderr, "%s: %u%% - replaced with %.*s\n", 171 filename, 172 100u - percent, 173 new_name_len, new_name 174 ); 175 } 176 /* Delete _source_ file */ 177 del = filename; 178 if (option_mask32 & BBUNPK_OPT_KEEP) /* ... unless -k */ 179 del = NULL; 180 } 181 if (del) 182 xunlink(del); 183 free_name: 184 if (new_name != filename) 185 free(new_name); 186 } 187 } while (*argv && *++argv); 188 189 if (option_mask32 & BBUNPK_OPT_STDOUT) 190 xclose(STDOUT_FILENO); /* with error check! */ 191 192 return exitcode; 193} 194 195#if ENABLE_UNCOMPRESS \ 196 || ENABLE_FEATURE_BZIP2_DECOMPRESS \ 197 || ENABLE_UNLZMA || ENABLE_LZCAT || ENABLE_LZMA \ 198 || ENABLE_UNXZ || ENABLE_XZCAT || ENABLE_XZ 199static 200char* FAST_FUNC make_new_name_generic(char *filename, const char *expected_ext) 201{ 202 char *extension = strrchr(filename, '.'); 203 if (!extension || strcmp(extension + 1, expected_ext) != 0) { 204 /* Mimic GNU gunzip - "real" bunzip2 tries to */ 205 /* unpack file anyway, to file.out */ 206 return NULL; 207 } 208 *extension = '\0'; 209 return filename; 210} 211#endif 212 213 214/* 215 * Uncompress applet for busybox (c) 2002 Glenn McGrath 216 * 217 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 218 */ 219//usage:#define uncompress_trivial_usage 220//usage: "[-cf] [FILE]..." 221//usage:#define uncompress_full_usage "\n\n" 222//usage: "Decompress .Z file[s]\n" 223//usage: "\n -c Write to stdout" 224//usage: "\n -f Overwrite" 225 226//config:config UNCOMPRESS 227//config: bool "uncompress (7.1 kb)" 228//config: default n # ancient 229//config: help 230//config: uncompress is used to decompress archives created by compress. 231//config: Not much used anymore, replaced by gzip/gunzip. 232 233//applet:IF_UNCOMPRESS(APPLET(uncompress, BB_DIR_BIN, BB_SUID_DROP)) 234//kbuild:lib-$(CONFIG_UNCOMPRESS) += bbunzip.o 235#if ENABLE_UNCOMPRESS 236int uncompress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 237int uncompress_main(int argc UNUSED_PARAM, char **argv) 238{ 239// (N)compress 4.2.4.4: 240// -d If given, decompression is done instead 241// -c Write output on stdout, don't remove original 242// -b Parameter limits the max number of bits/code 243// -f Forces output file to be generated 244// -v Write compression statistics 245// -V Output vesion and compile options 246// -r Recursive. If a filename is a directory, descend into it and compress everything 247 getopt32(argv, "cf"); 248 249 argv += optind; 250 251 return bbunpack(argv, unpack_Z_stream, make_new_name_generic, "Z"); 252} 253#endif 254 255 256/* 257 * Gzip implementation for busybox 258 * 259 * Based on GNU gzip v1.2.4 Copyright (C) 1992-1993 Jean-loup Gailly. 260 * 261 * Originally adjusted for busybox by Sven Rudolph <sr1@inf.tu-dresden.de> 262 * based on gzip sources 263 * 264 * Adjusted further by Erik Andersen <andersen@codepoet.org> to support files as 265 * well as stdin/stdout, and to generally behave itself wrt command line 266 * handling. 267 * 268 * General cleanup to better adhere to the style guide and make use of standard 269 * busybox functions by Glenn McGrath 270 * 271 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 272 * 273 * gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface 274 * Copyright (C) 1992-1993 Jean-loup Gailly 275 * The unzip code was written and put in the public domain by Mark Adler. 276 * Portions of the lzw code are derived from the public domain 'compress' 277 * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies, 278 * Ken Turkowski, Dave Mack and Peter Jannesen. 279 */ 280//usage:#define gunzip_trivial_usage 281//usage: "[-cfkt] [FILE]..." 282//usage:#define gunzip_full_usage "\n\n" 283//usage: "Decompress FILEs (or stdin)\n" 284//usage: "\n -c Write to stdout" 285//usage: "\n -f Force" 286//usage: "\n -k Keep input files" 287//usage: "\n -t Test file integrity" 288//usage: 289//usage:#define gunzip_example_usage 290//usage: "$ ls -la /tmp/BusyBox*\n" 291//usage: "-rw-rw-r-- 1 andersen andersen 557009 Apr 11 10:55 /tmp/BusyBox-0.43.tar.gz\n" 292//usage: "$ gunzip /tmp/BusyBox-0.43.tar.gz\n" 293//usage: "$ ls -la /tmp/BusyBox*\n" 294//usage: "-rw-rw-r-- 1 andersen andersen 1761280 Apr 14 17:47 /tmp/BusyBox-0.43.tar\n" 295//usage: 296//usage:#define zcat_trivial_usage 297//usage: "[FILE]..." 298//usage:#define zcat_full_usage "\n\n" 299//usage: "Decompress to stdout" 300 301//config:config GUNZIP 302//config: bool "gunzip (11 kb)" 303//config: default y 304//config: select FEATURE_GZIP_DECOMPRESS 305//config: help 306//config: gunzip is used to decompress archives created by gzip. 307//config: You can use the '-t' option to test the integrity of 308//config: an archive, without decompressing it. 309//config: 310//config:config ZCAT 311//config: bool "zcat (24 kb)" 312//config: default y 313//config: select FEATURE_GZIP_DECOMPRESS 314//config: help 315//config: Alias to "gunzip -c". 316//config: 317//config:config FEATURE_GUNZIP_LONG_OPTIONS 318//config: bool "Enable long options" 319//config: default y 320//config: depends on (GUNZIP || ZCAT) && LONG_OPTS 321 322//applet:IF_GUNZIP(APPLET(gunzip, BB_DIR_BIN, BB_SUID_DROP)) 323// APPLET_ODDNAME:name main location suid_type help 324//applet:IF_ZCAT(APPLET_ODDNAME(zcat, gunzip, BB_DIR_BIN, BB_SUID_DROP, zcat)) 325#if ENABLE_FEATURE_GZIP_DECOMPRESS 326static 327char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UNUSED_PARAM) 328{ 329 char *extension = strrchr(filename, '.'); 330 331 if (!extension) 332 return NULL; 333 334 extension++; 335 if (strcmp(extension, "tgz" + 1) == 0 336#if ENABLE_FEATURE_SEAMLESS_Z 337 || (extension[0] == 'Z' && extension[1] == '\0') 338#endif 339 ) { 340 extension[-1] = '\0'; 341 } else if (strcmp(extension, "tgz") == 0) { 342 filename = xstrdup(filename); 343 extension = strrchr(filename, '.'); 344 extension[2] = 'a'; 345 extension[3] = 'r'; 346 } else { 347 return NULL; 348 } 349 return filename; 350} 351 352#if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS 353static const char gunzip_longopts[] ALIGN1 = 354 "stdout\0" No_argument "c" 355 "to-stdout\0" No_argument "c" 356 "force\0" No_argument "f" 357 "test\0" No_argument "t" 358 "no-name\0" No_argument "n" 359 ; 360#endif 361 362/* 363 * Linux kernel build uses gzip -d -n. We accept and ignore it. 364 * Man page says: 365 * -n --no-name 366 * gzip: do not save the original file name and time stamp. 367 * (The original name is always saved if the name had to be truncated.) 368 * gunzip: do not restore the original file name/time even if present 369 * (remove only the gzip suffix from the compressed file name). 370 * This option is the default when decompressing. 371 * -N --name 372 * gzip: always save the original file name and time stamp (this is the default) 373 * gunzip: restore the original file name and time stamp if present. 374 */ 375int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 376int gunzip_main(int argc UNUSED_PARAM, char **argv) 377{ 378#if ENABLE_FEATURE_GUNZIP_LONG_OPTIONS 379 getopt32long(argv, BBUNPK_OPTSTR "dtn", gunzip_longopts); 380#else 381 getopt32(argv, BBUNPK_OPTSTR "dtn"); 382#endif 383 argv += optind; 384 385 /* If called as zcat... 386 * Normally, "zcat" is just "gunzip -c". 387 * But if seamless magic is enabled, then we are much more clever. 388 */ 389 if (ENABLE_ZCAT && (!ENABLE_GUNZIP || applet_name[1] == 'c')) 390 option_mask32 |= BBUNPK_OPT_STDOUT | BBUNPK_SEAMLESS_MAGIC; 391 392 return bbunpack(argv, unpack_gz_stream, make_new_name_gunzip, /*unused:*/ NULL); 393} 394#endif /* FEATURE_GZIP_DECOMPRESS */ 395 396 397/* 398 * Modified for busybox by Glenn McGrath 399 * Added support output to stdout by Thomas Lundquist <thomasez@zelow.no> 400 * 401 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 402 */ 403//usage:#define bunzip2_trivial_usage 404//usage: "[-cfk] [FILE]..." 405//usage:#define bunzip2_full_usage "\n\n" 406//usage: "Decompress FILEs (or stdin)\n" 407//usage: "\n -c Write to stdout" 408//usage: "\n -f Force" 409//usage: "\n -k Keep input files" 410//usage:#define bzcat_trivial_usage 411//usage: "[FILE]..." 412//usage:#define bzcat_full_usage "\n\n" 413//usage: "Decompress to stdout" 414 415//config:config BUNZIP2 416//config: bool "bunzip2 (8.7 kb)" 417//config: default y 418//config: select FEATURE_BZIP2_DECOMPRESS 419//config: help 420//config: bunzip2 is a compression utility using the Burrows-Wheeler block 421//config: sorting text compression algorithm, and Huffman coding. Compression 422//config: is generally considerably better than that achieved by more 423//config: conventional LZ77/LZ78-based compressors, and approaches the 424//config: performance of the PPM family of statistical compressors. 425//config: 426//config: Unless you have a specific application which requires bunzip2, you 427//config: should probably say N here. 428//config: 429//config:config BZCAT 430//config: bool "bzcat (8.7 kb)" 431//config: default y 432//config: select FEATURE_BZIP2_DECOMPRESS 433//config: help 434//config: Alias to "bunzip2 -c". 435 436//applet:IF_BUNZIP2(APPLET(bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP)) 437// APPLET_ODDNAME:name main location suid_type help 438//applet:IF_BZCAT(APPLET_ODDNAME(bzcat, bunzip2, BB_DIR_USR_BIN, BB_SUID_DROP, bzcat)) 439#if ENABLE_FEATURE_BZIP2_DECOMPRESS || ENABLE_BUNZIP2 || ENABLE_BZCAT 440int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 441int bunzip2_main(int argc UNUSED_PARAM, char **argv) 442{ 443 getopt32(argv, BBUNPK_OPTSTR "dt"); 444 argv += optind; 445 if (ENABLE_BZCAT && (!ENABLE_BUNZIP2 || applet_name[2] == 'c')) /* bzcat */ 446 option_mask32 |= BBUNPK_OPT_STDOUT; 447 448 return bbunpack(argv, unpack_bz2_stream, make_new_name_generic, "bz2"); 449} 450#endif 451 452 453/* 454 * Small lzma deflate implementation. 455 * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.org> 456 * 457 * Based on bunzip.c from busybox 458 * 459 * Licensed under GPLv2, see file LICENSE in this source tree. 460 */ 461//usage:#define unlzma_trivial_usage 462//usage: "[-cfk] [FILE]..." 463//usage:#define unlzma_full_usage "\n\n" 464//usage: "Decompress FILE (or stdin)\n" 465//usage: "\n -c Write to stdout" 466//usage: "\n -f Force" 467//usage: "\n -k Keep input files" 468//usage: 469//usage:#define lzma_trivial_usage 470//usage: "-d [-cfk] [FILE]..." 471//usage:#define lzma_full_usage "\n\n" 472//usage: "Decompress FILE (or stdin)\n" 473//usage: "\n -d Decompress" 474//usage: "\n -c Write to stdout" 475//usage: "\n -f Force" 476//usage: "\n -k Keep input files" 477//usage: 478//usage:#define lzcat_trivial_usage 479//usage: "[FILE]..." 480//usage:#define lzcat_full_usage "\n\n" 481//usage: "Decompress to stdout" 482 483//config:config UNLZMA 484//config: bool "unlzma (7.5 kb)" 485//config: default y 486//config: help 487//config: unlzma is a compression utility using the Lempel-Ziv-Markov chain 488//config: compression algorithm, and range coding. Compression 489//config: is generally considerably better than that achieved by the bzip2 490//config: compressors. 491//config: 492//config:config LZCAT 493//config: bool "lzcat (7.5 kb)" 494//config: default y 495//config: help 496//config: Alias to "unlzma -c". 497//config: 498//config:config LZMA 499//config: bool "lzma -d" 500//config: default y 501//config: help 502//config: Enable this option if you want commands like "lzma -d" to work. 503//config: IOW: you'll get lzma applet, but it will always require -d option. 504 505//applet:IF_UNLZMA(APPLET(unlzma, BB_DIR_USR_BIN, BB_SUID_DROP)) 506// APPLET_ODDNAME:name main location suid_type help 507//applet:IF_LZCAT(APPLET_ODDNAME(lzcat, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzcat)) 508//applet:IF_LZMA( APPLET_ODDNAME(lzma, unlzma, BB_DIR_USR_BIN, BB_SUID_DROP, lzma)) 509//kbuild:lib-$(CONFIG_UNLZMA) += bbunzip.o 510//kbuild:lib-$(CONFIG_LZCAT) += bbunzip.o 511//kbuild:lib-$(CONFIG_LZMA) += bbunzip.o 512#if ENABLE_UNLZMA || ENABLE_LZCAT || ENABLE_LZMA 513int unlzma_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 514int unlzma_main(int argc UNUSED_PARAM, char **argv) 515{ 516 IF_LZMA(int opts =) getopt32(argv, BBUNPK_OPTSTR "dt"); 517# if ENABLE_LZMA 518 /* lzma without -d or -t? */ 519 if (applet_name[2] == 'm' && !(opts & (BBUNPK_OPT_DECOMPRESS|BBUNPK_OPT_TEST))) 520 bb_show_usage(); 521# endif 522 /* lzcat? */ 523 if (ENABLE_LZCAT && applet_name[2] == 'c') 524 option_mask32 |= BBUNPK_OPT_STDOUT; 525 526 argv += optind; 527 return bbunpack(argv, unpack_lzma_stream, make_new_name_generic, "lzma"); 528} 529#endif 530 531 532//usage:#define unxz_trivial_usage 533//usage: "[-cfk] [FILE]..." 534//usage:#define unxz_full_usage "\n\n" 535//usage: "Decompress FILE (or stdin)\n" 536//usage: "\n -c Write to stdout" 537//usage: "\n -f Force" 538//usage: "\n -k Keep input files" 539//usage: 540//usage:#define xz_trivial_usage 541//usage: "-d [-cfk] [FILE]..." 542//usage:#define xz_full_usage "\n\n" 543//usage: "Decompress FILE (or stdin)\n" 544//usage: "\n -d Decompress" 545//usage: "\n -c Write to stdout" 546//usage: "\n -f Force" 547//usage: "\n -k Keep input files" 548//usage: 549//usage:#define xzcat_trivial_usage 550//usage: "[FILE]..." 551//usage:#define xzcat_full_usage "\n\n" 552//usage: "Decompress to stdout" 553 554//config:config UNXZ 555//config: bool "unxz (13 kb)" 556//config: default y 557//config: help 558//config: unxz is a unlzma successor. 559//config: 560//config:config XZCAT 561//config: bool "xzcat (13 kb)" 562//config: default y 563//config: help 564//config: Alias to "unxz -c". 565//config: 566//config:config XZ 567//config: bool "xz -d" 568//config: default y 569//config: help 570//config: Enable this option if you want commands like "xz -d" to work. 571//config: IOW: you'll get xz applet, but it will always require -d option. 572 573//applet:IF_UNXZ(APPLET(unxz, BB_DIR_USR_BIN, BB_SUID_DROP)) 574// APPLET_ODDNAME:name main location suid_type help 575//applet:IF_XZCAT(APPLET_ODDNAME(xzcat, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xzcat)) 576//applet:IF_XZ( APPLET_ODDNAME(xz, unxz, BB_DIR_USR_BIN, BB_SUID_DROP, xz)) 577//kbuild:lib-$(CONFIG_UNXZ) += bbunzip.o 578//kbuild:lib-$(CONFIG_XZCAT) += bbunzip.o 579//kbuild:lib-$(CONFIG_XZ) += bbunzip.o 580#if ENABLE_UNXZ || ENABLE_XZCAT || ENABLE_XZ 581int unxz_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; 582int unxz_main(int argc UNUSED_PARAM, char **argv) 583{ 584 IF_XZ(int opts =) getopt32(argv, BBUNPK_OPTSTR "dt"); 585# if ENABLE_XZ 586 /* xz without -d or -t? */ 587 if (applet_name[2] == '\0' && !(opts & (BBUNPK_OPT_DECOMPRESS|BBUNPK_OPT_TEST))) 588 bb_show_usage(); 589# endif 590 /* xzcat? */ 591 if (ENABLE_XZCAT && applet_name[2] == 'c') 592 option_mask32 |= BBUNPK_OPT_STDOUT; 593 594 argv += optind; 595 return bbunpack(argv, unpack_xz_stream, make_new_name_generic, "xz"); 596} 597#endif 598